Antidimming composition



106 OMPOSITIO I Cm Reference /3 9 Examm comma OBPLASTIC p v UNITED STATES PATENT ounce. Y

' I EABBY'A. or meswoon,

13943774 R I Specification of Letten ratent. Pat t d g t 25 1921 Io Drawing. Original application Med January 24, 1921, 8eria1 Io. 489,885. Divided and this application-nlerl Kay 18, 1921. Serial Io. 469,394, fix

' 3 9 s 11 3 Aw x (Inn man-m ACT or men 8,1883, 22 mar. L, 825.) j To all whom it may concern: 4 heated to about 100. C. until a homogeneous Beit known that'I, Hannr A. K UHN, a massis formed. v citizen of the United States of America, and Among the salts of the s'ulfonated ve eresident of Edgewood, Ma land, have intable oils whhmm' 66 4 6 vented certain new and usefu Im rovements are those of cotton seed oil,

' i'n Antidimming Compositions, e which the re? 011, corn oil linseed oil and castor 011. following is a specification. ave found, however, that the m This application ismade under the act of are obtain d by using the alkali metal salts March 3, 1883, chapter 143 (22 Stat. 625) of sulfonated rape or cotton seed oils, or 60 and the invention herein described and mixtur of these. For alkalies the most claimed may be used by the Government of suitable" are the caustic alkalies. the United States or any of its oflicers or a binding material, I have found glycemployees in the prosecution of work for the sun very satis actory, especial] if the com- Government, and any person in the United sition is to be 'made into ca es or soaked 66 States without the payment to me of any mto. cloth. Sodium silicate also acts well m yi lg there n, as a binder and when used with glycerin for v s application is a division of my apthis purpose improves the composition. Y I plication erial No. 439,665, filed January The mineral oil which I have found most 24, 1921. a sultable for this purpose isen no oil; bow 7 '20 Thi invention relates to a composition for over, other mineral oils may substituted preventing the of glass surfaces, therefor. The f u nct1on of the mineral oil is such as windows, wind shields, lenses and to give the anti-dimmin composition a the like. 1 softer finish and it 'also als to the perma- Among the objects of this invention is the nency of the film. provision of a composition which, when a A specific example of my composition is plied tu 1 a glasfs surface, preveiciit t lel as follows:

accum ation o moisture .t ereon an wi break up the surface tension of lobules of Sodium salt of sul-fonated cotmoistu' re condens' upon suc surface, mfg g gg g 80 thereby causing the liquid to flow down the Sodiun; 5 u surface of the glass in a substantially uni- Glycerin 5 6 form Engine oil 3 5 Another ob ect of this invention is to pro- Water 25400 a vide a composition which W11 I prevent the as condensation and accumulation of moisture These substances are heated together until upon other surfaces than glass, such as mea omogeneousmass is obtained and the mixtalllc surfaces, etc. y ture allowed to cool, and preparedeither in v A still furtherobject of this invention is the form, of cakes or paste, or else soaked to provide a composition, such as above deinto. cloth foruse.

40 scribed, which is also caglable of being taken This invention is not limited to the'specific up by a cloth, felt, or brie, the saturated details set forth-in the foregoing examples 3 or impregnated fabric to be applied to a which should be construed as illustrative and i surface b rubbing the surface therewith not by way of limitation, and in view of the and there y applying to such surface the numerous modifications .which ma be efas 46 anti-dimming composition. .fected therein without departing om the In reparmg said composition, I use a; spirit and scope of this invention, it is desalt 0? a sulfonated vegetable oil and add sired that on1y such limitations be thereto an alkali with small quantities of a a are indicated in the appended claims.

I bindin material and a mineral oil. Water What I is: 50 in su cient quantity to make a paste or 1. An anticomposition comprm- 1 liquid is also add The ingredients are ing the reactionp nets of a salt of wifeparts, caustic alkali 15-30 parts, water glass 3-5 parts, glycerin 3-5 parts, engine oil 3-5 parts and water 25-100 parts.

4. A fabric impregnated withoa composition comprising the reaction products of an alkali metal salt or sulfonated cotton seed oil, caustic alkali, soluble silicate, glycerin, engine oil and water.

HARRY A. KUHN. 

